超音速
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| NASA X-59 quiet supersonic aircraft on verge of breaking sound barrier, completes 14 test flights up to Mach 0.95 |
|
0 | 2 | June 3, 2026 |
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| NASA X-59 quiet supersonic aircraft on verge of breaking sound barrier, completes 14 test flights up to Mach 0.95 |
|
0 | 2 | June 3, 2026 |